The patch titled
Subject: kexec, elf: introduce NT_VMCORE_DEBUGINFO note type
has been added to the -mm tree. Its filename is
kexec-elf-introduce-nt_vmcore_debuginfo-note-type.patch
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From: HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxxxxx>
Subject: kexec, elf: introduce NT_VMCORE_DEBUGINFO note type
This patch introduces NT_VMCORE_DEBUGINFO to a unique note type in
VMCOREINFO name, which has had no name so far. The name means that it's a
kind of note type in vmcoreinfo that contains system kernel's debug
information.
Signed-off-by: HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxxxxx>
Cc: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/uapi/linux/elf.h | 4 ++++
kernel/kexec.c | 4 ++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff -puN include/uapi/linux/elf.h~kexec-elf-introduce-nt_vmcore_debuginfo-note-type include/uapi/linux/elf.h
--- a/include/uapi/linux/elf.h~kexec-elf-introduce-nt_vmcore_debuginfo-note-type
+++ a/include/uapi/linux/elf.h
@@ -398,6 +398,10 @@ typedef struct elf64_shdr {
#define NT_METAG_CBUF 0x500 /* Metag catch buffer registers */
#define NT_METAG_RPIPE 0x501 /* Metag read pipeline state */
+/*
+ * Notes exported from /proc/vmcore, belonging to "VMCOREINFO" name.
+ */
+#define NT_VMCORE_DEBUGINFO 0 /* vmcore system kernel's debuginfo */
/* Note header in a PT_NOTE section */
typedef struct elf32_note {
diff -puN kernel/kexec.c~kexec-elf-introduce-nt_vmcore_debuginfo-note-type kernel/kexec.c
--- a/kernel/kexec.c~kexec-elf-introduce-nt_vmcore_debuginfo-note-type
+++ a/kernel/kexec.c
@@ -1427,8 +1427,8 @@ static void update_vmcoreinfo_note(void)
if (!vmcoreinfo_size)
return;
- buf = append_elf_note(buf, VMCOREINFO_NOTE_NAME, 0, vmcoreinfo_data,
- vmcoreinfo_size);
+ buf = append_elf_note(buf, VMCOREINFO_NOTE_NAME, NT_VMCORE_DEBUGINFO,
+ vmcoreinfo_data, vmcoreinfo_size);
final_note(buf);
}
_
Patches currently in -mm which might be from d.hatayama@xxxxxxxxxxxxxx are
vmcore-reference-e_phoff-member-explicitly-to-get-position-of-program-header-table.patch
vmcore-clean-up-by-removing-unnecessary-variable.patch
vmcore-rearrange-program-headers-without-assuming-consequtive-pt_note-entries.patch
vmcore-sysfs-export-elf-note-segment-size-instead-of-vmcoreinfo-data-size.patch
vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment.patch
vmcore-round-up-buffer-size-of-elf-headers-by-page_size.patch
vmcore-procfs-introduce-a-flag-to-distinguish-objects-copied-in-2nd-kernel.patch
vmcore-copy-non-page-size-aligned-head-and-tail-pages-in-2nd-kernel.patch
vmcore-modify-vmcore-clean-up-function-to-free-buffer-on-2nd-kernel.patch
vmcore-clean-up-read_vmcore.patch
vmcore-read-buffers-for-vmcore-objects-copied-from-old-memory.patch
vmcore-allocate-per-cpu-crash_notes-objects-on-page-size-boundary.patch
kexec-allocate-vmcoreinfo-note-buffer-on-page-size-boundary.patch
kexec-elf-introduce-nt_vmcore_debuginfo-note-type.patch
elf-introduce-nt_vmcore_pad-type.patch
kexec-fill-note-buffers-by-nt_vmcore_pad-notes-in-page-size-boundary.patch
vmcore-check-nt_vmcore_pad-as-a-mark-indicating-the-end-of-elf-note-buffer.patch
vmcore-check-if-vmcore-objects-satify-mmaps-page-size-boundary-requirement.patch
vmcore-round-up-offset-of-vmcore-object-in-page-size-boundary.patch
vmcore-count-holes-generated-by-round-up-operation-for-vmcore-size.patch
vmcore-introduce-mmap_vmcore.patch
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